Giant expansive mass in the maxillary sinus
Proliferating Trichilemmal Cyst (PTC) is a benign follicular tumor. We describe a 32-year-old male with progressive nasal obstruction, recurrent epistaxis, and periorbital swelling. Imaging revealed a soft-tissue mass with orbital extension, initially suggestive of a vascular lesion. Histopathology and immunohistochemistry confirmed PTC with mural vascular malformation. This case represents the first reported case of PTC in the maxillary sinus, underscoring the importance of considering PTC in the differential diagnosis of sinonasal tumors.
Authors
- TIAGO NOVAES PINHEIRO (ORCID: https://orcid.org/0000-0003-2987-4759)
- Carolina Silvano Vilarinho da Silva (ORCID: https://orcid.org/0000-0003-2754-7551)
- Eliandro de Souza Freitas (ORCID: https://orcid.org/0000-0002-0177-9197)
- Italo Fernando Morais de Castro (ORCID: https://orcid.org/0000-0003-0437-5232)
- Bianca Faria de Lima (ORCID: https://orcid.org/0009-0000-5749-4513)
Institutions
- Universidade de Cuiabá (BR)
- Universidade do Estado do Amazonas (BR)
Publication Details
- Journal
- Advances in Oral and Maxillofacial Surgery
- Published
- 2025-10-28
- DOI
- https://doi.org/10.1016/j.adoms.2025.100599
- Primary Topic
- Cancer and Skin Lesions
- Type
- article
- Field-Weighted Citation Impact
- 0.00